Fluorescence Probe for Detection of Malathion Using Sulfur Quantum Dots@Graphitic‐Carbon Nitride Nanocomposite

Luminescence, Год журнала: 2025, Номер 40(2)

Опубликована: Янв. 31, 2025

ABSTRACT A novel fluorescence‐based sensor has been developed for the sensitive detection of malathion, an organophosphorus pesticide, using sulfur‐doped quantum dots (SQDs) embedded within graphitic carbon nitride (g‐C₃N₄) nanosheets. The SQDs were synthesized through a hydrothermal method, whereas g‐C₃N₄ nanosheets produced via exfoliation process. resulting SQDs@g‐C₃N₄ nanocomposite demonstrated outstanding performance malathion in food samples, exhibiting wide linear range 10–120 μM and exceptionally low limit 0.02 μM. This sensitivity allows accurate rapid pesticide monitoring at trace levels. sensor's was optimized by varying experimental conditions, ensuring that it provided high sensitivity, excellent stability, impressive selectivity toward even complex matrices.

Язык: Английский

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History of metal free g-C3N4 photocatalysts for hydrogen production: A comprehensive review

Diamond and Related Materials, Год журнала: 2024, Номер 146, С. 111228 - 111228

Опубликована: Май 26, 2024

Язык: Английский

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Cerium-doped sulfur quantum dots for the detection of lead ions and the use of anticounterfeiting ink

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2024, Номер 701, С. 134845 - 134845

Опубликована: Июль 24, 2024

Язык: Английский

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Solution-gelation synthesis of silver nanoparticles utilizing Justicia tranquebariensis extract for antibacterial, antioxidant, antifungal and anticancer activity

Journal of Sol-Gel Science and Technology, Год журнала: 2024, Номер 110(3), С. 828 - 841

Опубликована: Май 20, 2024

Язык: Английский

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Hydrothermally synthesized fluorescent nitrogen-doped carbon dots for catalytic efficiency and anti-counterfeiting application

Optical Materials, Год журнала: 2024, Номер 152, С. 115401 - 115401

Опубликована: Апрель 26, 2024

Язык: Английский

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Termite wings derived N-doped carbon nanodots: applications for Cu2+ sensing, fluorescent ink and flexible polymeric film

Journal of Sol-Gel Science and Technology, Год журнала: 2024, Номер 111(1), С. 106 - 118

Опубликована: Июнь 7, 2024

Язык: Английский

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Mn2+-activated NaYF4:Yb, Er red-emitting nanophosphors for accurate latent fingerprint identification by an Artificial Intelligence program

Journal of Alloys and Compounds, Год журнала: 2024, Номер 1002, С. 175269 - 175269

Опубликована: Июнь 20, 2024

Язык: Английский

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Synthesis of Aluminum Oxide (Al₂O₃) Nanoparticles Decorated With Polymeric Carbon (Al₂O₃/AC) Nanocomposites for High Specific Capacitance Value

Polymers for Advanced Technologies, Год журнала: 2024, Номер 35(10)

Опубликована: Окт. 1, 2024

ABSTRACT Aluminum oxide nanoparticles/activated carbon (Al 2 O 3 NPs/AC) nanocomposite were synthesized using an optimized sol–gel synthesis method. Various characterization techniques, including x‐ray, field emission scanning electron microscopy (FE‐SEM), Fourier transform infrared (FTIR), UV–visible spectroscopy and cyclic voltammetry, employed electrochemical properties of the prepared samples. X‐ray diffraction (XRD) analysis revealed higher crystal plane intensities in Al NPs compared to /AC nanocomposites. The average crystallite size was determined be 32 nm for 20 FE‐SEM showcased agglomeration NPs, while composite exhibited agglomerated embedded It found that band gaps 5.5 5.6 eV, respectively. Electrochemical through voltammetry demonstrated specific capacitance nanocomposites six times than NPs. This comprehensive investigation provides valuable insights into enhanced performance nanocomposites, suggesting its potential application energy storage devices.

Язык: Английский

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Fluorescent N-Doped Carbon Dots as a Biocompatible Sensor for Thiophanate-Methyl Detection

Journal of Fluorescence, Год журнала: 2025, Номер unknown

Опубликована: Янв. 9, 2025

Язык: Английский

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A Novel Aggregation-Induced Emission-Based Electrochemiluminescence Aptamer Sensor Utilizing Red-Emissive Sulfur Quantum Dots for Rapid and Sensitive Malathion Detection

Biosensors, Год журнала: 2025, Номер 15(1), С. 64 - 64

Опубликована: Янв. 20, 2025

Rapid, effective, and cost-effective methods for large-scale screening of pesticide residues in the environment agricultural products are important assessing potential environmental risks safeguarding human health. Here, we constructed a novel aggregation-induced emission (AIE) electrochemical aptamer (Apt) sensor based on red-emissive sulfur quantum dots (SQDs), which aimed at rapid quantitative detection malathion. SQDs were prepared using two-step oxidation method with good electrochemiluminescence (ECL) optical properties. These modified onto electrode surface to serve as ECL luminophores. Subsequently, Apt was introduced form double-helix structure complementary chain (cDNA). The signal reduced because biomolecules had poor electrical conductivity inefficient electron transfer. When target malathion added, double helix unraveled, fell off surface, restored. linear range 1.0 × 10−13–1.0 10−8 mol·L−1, limit 0.219 fM. successful preparation not only develops properties but also expands application sensing.

Язык: Английский

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